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  • PhD in Mathematics, 1979, University of Chicago
  • MS in Mathematics, 1974, University of Chicago
  • BS in Pure Mathematics, 1973, Case Western Reserve University

Research interests:

Differential Geometry, General Relativity


My field is differential geometry, mostly as relating to general relativity.  I study global structures of spacetimes, particularly the construction known as the Causal Boundary (which creates, in a universal manner, a structure that allows for understanding the causality behavior of a spacetime model in the large).

I've also spent some time contributing to a study of how differential geometry can be used to compare 2- and 3-dimensional physical models (such as medical images of a human body at two different times).

  • University of Missouri, 1979--1980
  • Brown University, 1980--1983
  • on leave at University of Bonn and Planck Institute for Mathematics, 1981--1982
  • Oregon State University, 1983--1989
  • Coastal Carolina College, 1989--1990
  • Saint Louis University, 1990--present
  • on leave at Australian National University, fall, 1996
  • on leave at University of Missouri, spring, 2004
  • on leave at Perimeter Institute for Theoretical Physics, spring, 2011
  • President of SLU Chapter of AAUP, 2012--present
  • On leave at SLU, fall, 2019


Show all
Spring 2019MATH 6420 Differential Geometry IIMWF 1:10pm-2:00pm
Spring 2019STAT 1300 / MATH 1300 Elementary Statistics with ComputersMWF 3:10pm-4:00pm
Fall 2018MATH 3270 Advanced Mathematics for EngineersMWF 1:10pm-2:00pm
Fall 2018MATH 6410 Differential Geometry IMWF 2:10pm-3:00pm
Spring 2018MATH 2530 Calculus IIIMTWF 1:10pm-2:00pm
Spring 2018STAT 1300 / MATH 1300 Elementary Statistics with ComputersMWF 2:10pm-3:00pm
Fall 2017MATH 2530 Calculus IIIMTWF 1:10pm-2:00pm
Fall 2017MATH 3270 Advanced Mathematics for EngineersMWF 12:00pm-12:50pm